Tiger_mate,
Like helicopter pilots, motorcyclists realise that if they kill you they will probably kill themselves as well
Therefore, the vast majority of us do not do anything stupid since we don't tend to bounce too well.
I think you would thoroughly enjoy yourself riding pillion; I am very good with nervous pax
and you would realise how much more you can see of the countryside and the road.
If you trust the person as a pilot, why not as a motorcyclist? In my case, you would far better off with my 1,000s hours on a bike as opposed to just about 100 in helicopter